electronics quiz 25 qp

Name the three configuration of a transistor

• Emitter, Base and Collector
• npn, pnp and diode configuration
• Common Emitter, Common Base and Common Collector
• Emitter, base and saturation

In every Transistor configuration, what is the state of emitter junction?

• Forward Biased
• Reverse Biased
• Saturation point
• cut off

In common base configuration, which terminal is the input terminal?

• Emitter
• base
• collector
• saturation

Which Transistor configuration has the lowest power gain?

• Common Emitter
• Common Base
• Common Collector
• None

The bias condition for a transistor to be used as a linear amplifier is called_____________________

• forward-reverse
• forward-forward
• reverse-reverse
• collector-bias

In a common emitter alpha is 0.9. The emitter current is 0.1mA. what is the value of IB current?

• 5.3mA
• 0.01mA
• 180mA
• cannot be determined

When operated in cutoff and saturation, the transistor acts like___________________

• a linear amplifier
• a switch
• a variable capacitor
• a variable resistor

The Beta(DC) for a given type of transistor_______________

• varies with temperature
• is a fixed constant
• varies from device to device
• answers A and C

Ideally, a dc load line is a straight line drawn on the collector characteristics curves between_________________________

• The Q-point and cutoff
• The Q-point and Saturation
• Vce(cutoff) and Ic(sat)
• Ib=0 and Ib=Ic/Beta(DC)

Voltage-divider bias______________________________

• cannot be independent of Beta(DC)
• can be essentially independent of Beta(DC)
• is not widely used
• requires fewer components than all the other methods